Viser treff 32508-32527 av 32680

    • X'atsull Heritage Village: A case study in indigenous tourism. 

      Jennings, Helen (Master thesis; Mastergradsoppgave, 2014-05-21)
      This thesis is an anthropological case study of the work of the X’atsull Heritage Village in British Columbia, Canada. The village is run by members of the Shuswap Nation and is accredited by the Aboriginal Tourism of British Columbia (AtBC). The research is based on fieldwork conducted at the site for a short period in the summer of 2013; the author was essentially a participant observer. The ...
    • X-, C-, and L-band SAR signatures of newly formed sea ice in Arctic leads during winter and spring 

      Johansson, Malin; Brekke, Camilla; Spreen, Gunnar; King, Jennifer A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-02)
      We examine an extensive synthetic aperture radar (SAR) data set from the Arctic Ocean spanning a time period from January to June 2015, with the aim of identifying multi-polarization parameters that can be used to accurately separate newly formed sea ice from the surroundings. Newly formed sea ice areas both provide favourable routing for ship traffic, and are key to Arctic climate science because ...
    • X-ray absorption resonances near L2,3-edges from real-time propagation of the Dirac–Kohn–Sham density matrix 

      Kadek, Marius; Konecny, Lukas; Gao, Bin; Repisky, Michal; Ruud, Kenneth (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-07)
      The solution of the Liouville–von Neumann equation in the relativistic Dirac–Kohn–Sham density matrix formalism is presented and used to calculate X-ray absorption cross sections. Both dynamical relaxation effects and spin–orbit corrections are included, as demonstrated by calculations of the X-ray absorption of SF6 near the sulfur L2,3-edges. We also propose an analysis facilitating the interpretation ...
    • X-ray Absorption Spectroscopy as a Probe of Ligand Noninnocence in Metallocorroles: The Case of Copper Corroles 

      Lim, Hyeongtaek; Kolle, Ekaney Thomas; Hedman, Britt; Hodgson, Keith O; Ghosh, Abhik; Solomon, Edward I. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-02)
      The question of ligand noninnocence in Cu corroles has long been a topic of discussion. Presented herein is a Cu K-edge X-ray absorption spectroscopy (XAS) study, which provides a direct probe of the metal oxidation state, of three Cu corroles, Cu[TPC], Cu[Br8TPC], and Cu[(CF3)8TPC] (TPC = meso-triphenylcorrole), and the analogous Cu(II) porphyrins, Cu[TPP], Cu[Br8TPP], and Cu[(CF3)8TPP] (TPP = ...
    • X-ray absorption spectroscopy of archetypal chromium porphyrin and corrole derivatives 

      Cao, Rui; Thomas, Kolle E.; Ghosh, Abhik; Sarangi, Ritimukta (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-29)
      A combination of Cr K-edge XAS and DFT calculations have been performed on archetypal chromium porphyrinoid complexes Cr<sup>IV</sup>[TMP]O (<b>2</b>) and Cr<sup>V</sup>[TPC]O (<b>3</b>), and the results have been compared to the reference compound Cr<sup>III</sup>[TPP]Cl (<b>1</b>), where TPP<sup>2−</sup>, TMP<sup>2−</sup>, and TPC<sup>3−</sup> are the anions of <i>meso</i>-tetraphenylporphyrin, ...
    • X-ray absorption spectroscopy of exemplary platinum porphyrin and corrole derivatives: metal- versus ligand-centered oxidation 

      Ghosh, Abhik (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-30)
      A combination of Pt L<sub>3</sub>-edge X-ray absorption spectroscopy (EXAFS and XANES) and DFT (TPSS) calculations have been performed on powder samples of the archetypal platinum porphyrinoid complexes Pt<sup>II</sup>[TpCF<sub>3</sub>PP], Pt<sup>IV</sup>[TpCF<sub>3</sub>PP]Cl<sub>2</sub>, and Pt<sup>IV</sup>[TpCF<sub>3</sub>PC](Ar)(py), where TpCF<sub>3</sub>PP<sup>2-</sup> = meso-tetrakis(p-tr ...
    • X-ray crystal structure of Vibrio alkaline phosphatase with the non-competitive inhibitor cyclohexylamine 

      Ásgeirsson, Bjarni; Markússon, Sigurbjörn; Hlynsdóttir, Sigríður S.; Helland, Ronny; Hjörleifsson, Jens G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-15)
      <i>Background</i> - <i>Para</i>-nitrophenyl phosphate, the common substrate for alkaline phosphatase (AP), is available as a cyclohexylamine salt. Here, we report that cyclohexylamine is a non-competitive inhibitor of APs.<br><br> <i>Methods</i> - Cyclohexylamine inhibited four different APs. Co-crystallization with the cold-active <i>Vibrio</i> AP (VAP) was performed and the structure solved.<br><br> ...
    • Xenotropic and polytropic retrovirus receptor 1 regulates procoagulant platelet polyphosphate 

      Mailer, Reiner K.; Allende, Mikel; Heestermans, Marco; Schweizer, Michaela; Deppermann, Carsten; Frye, Maike; Pula, Giordano; Odeberg, Jacob Olof; Gelderblom, Mathias; Rose-John, Stefan; Sickmann, Albert; Blankenberg, Stefan; Huber, Tobias B.; Kubisch, Christian; Maas, Coen; Gambaryan, Stepan; Firsov, Dmitri; Stavrou, Evi X.; Butler, Lynn; Renné, Thomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-15)
      Polyphosphate is a procoagulant inorganic polymer of linear-linked orthophosphate residues. Multiple investigations have established the importance of platelet polyphosphate in blood coagulation; however, the mechanistic details of polyphosphate homeostasis in mammalian species remain largely undefined. In this study, xenotropic and polytropic retrovirus receptor 1 (XPR1) regulated polyphosphate in ...
    • The xTrans Transaction Model and FlexCP Commit Protocol 

      Arntsen, Anna-Brith (Research report; Forskningsrapport, 2006)
      Traditionally, transactions are flat and atomic possessing the ACID properties. The traditional ACID transaction model has clear limitations in new application domains where transactions often are long-running and require properties that go beyond ACID. Structuring a long-running transaction as an ACID transaction will impede both performance and concurrency. To meet extended and varying transactional ...
    • Y-veien til bachelor i ingeniørfag - muligheter, dilemma og utfordringer : fra evaluering av prosjektet Y-veinord 

      Lund, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      Artikkelen bygger på en forskningsbasert evaluering av prosjektet Y-veinord, som er et samarbeidsprosjekt mellom petroleumsnæringen, Høgskolen i Narvik og UiT Norges arktiske universitet. Prosjektet har som målsetting å sikre tilgang til kompetanse for petroleumsnæringen og også øvrig næringsliv i Nord-Norge. «Y-veien» er en betegnelse for høyere utdanning på bachelornivå som er åpen for søkere ...
    • Year-around C- and L-band observation around the MOSAiC ice floe with high spatial and temporal resolution 

      Singha, Suman; Johansson, Malin; Spreen, Gunnar; Howell, Stephen; Shin-ichi, Sobue; Davidson, Malcolm (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-12)
      In September 2019, the German research icebreaker Polarstern started the largest multidisciplinary Arctic expedition, the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) drift experiment. Being moored to ice floes at high Arctic for a whole year, thus including the winter season, the main goal of the expedition is to better understand and quantify relevant processes ...
    • Year-round CH4 and CO2 flux dynamics in two contrasting freshwater ecosystems of the subarctic 

      Jammet, Mathilde; Dengel, Sigrid; Kettner, Ernesto; Parmentier, Frans-Jan W.; Wik, Martin; Crill, Patrick; Friborg, Thomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-21)
      Lakes and wetlands, common ecosystems of the high northern latitudes, exchange large amounts of the climate-forcing gases methane (CH4) and carbon dioxide (CO2) with the atmosphere. The magnitudes of these fluxes and the processes driving them are still uncertain, particularly for subarctic and Arctic lakes where direct measurements of CH4 and CO2 emissions are often of low temporal resolution and ...
    • Year-round distribution of Northeast Atlantic seabird populations: applications for population management and marine spatial planning 

      Fauchald, Per; Amélineau, Françoise; Bråthen, Vegard Sandøy; Descamps, Sebastien; Ekker, Morten; Helgason, Halfdan Helgi; Johansen, Malin; Merkel, Benjamin; Moe, Børge; Åström, Jens; Bjørnstad, Oskar; Chastel, Olivier; Christensen-Dalsgaard, Signe; Danielsen, Jóhannis; Daunt, Francis; Dehnhard, Nina; Erikstad, Kjell E.; Ezhov, Alexey; Gavrilo, Maria; Hallgrimsson, Gunnar Thor; Hansen, Erpur Snær; Harris, Mike; Helberg, Morten; Jónsson, Jón Einar; Kolbeinsson, Yann; Krasnov, Yuri V.; Langset, Magdalene; Lorentsen, Svein-Håkon; Lorentzen, Erlend; Newell, Mark; Olsen, Bergur; Reiertsen, Tone Kristin; Systad, Geir Helge Rødli; Thompson, Paul; Thórarinsson, Thorkell Lindberg; Wanless, Sarah; Wojczulanis-Jakubas, Katarzyna; Strøm, Hallvard (Journal article; Tidsskriftartikkel; Peer reviewed, 2021)
      Tracking data of marine predators are increasingly used in marine spatial management. We developed a spatial data set with estimates of the monthly distribution of 6 pelagic seabird species breeding in the Northeast Atlantic. The data set was based on year-round global location sensor (GLS) tracking data of 2356 adult seabirds from 2006−2019 from a network of seabird colonies, data describing the ...
    • A year-round satellite sea-ice thickness record from CryoSat-2 

      Landy, Jack Christopher; Dawson, Geoffrey; Tsamados, Michel; Bushuk, Mitchell; Stroeve, Julienne C.; Howell, Stephen; Krumpen, Thomas; Babb, David G.; Komarov, Alexander S.; Heorton, Harold; Belter, H. Jakob; Aksenov, Yevgeny (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-14)
      Arctic sea ice is diminishing with climate warming at a rate unmatched for at least 1,000 years. As the receding ice pack raises commercial interest in the Arctic, it has become more variable and mobile, which increases safety risks to maritime users. Satellite observations of sea-ice thickness are currently unavailable during the crucial melt period from May to September, when they would be most ...
    • Yearly variation in allelopathic compound production along a climatic gradient. A case of study of Empetrum nigrum 

      Moriana Armendariz, Mikel (Master thesis; Mastergradsoppgave, 2017-11-15)
      Empetrum nigrum is a plant common in northern ecosystems with capacity to produce allelopathic compounds, which among other effects inhibit seed establishment and germination of other plants. Some of the most studied compounds regarding this effect are batatasin-III and phenolic acids, among them caffeic acid, which account for a large proportion of the leaf’s biomass. 5 random sites were established ...
    • Yersinia enterocolitica: A Follow-up of the Outbreak in the Norwegian Armed Forces in 2014 

      Borud, Einar Kristian; Håberg, Siri Eldevik; Norheim, Arne Johan; Strand, Leif Åge; Fadum, Elin Anita (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-28)
      Introduction - In the spring of 2014, there was an outbreak of Yersinia enterocolitica (YE) gastroenteritis in four Norwegian military camps—the largest outbreak ever reported in Norway. YE is usually transmitted via food, and the gastrointestinal disease caused by the bacterium is considered a public health problem in several countries. Common symptoms of YE gastroenteritis are abdominal pain, ...
    • Yes, health is important, but as much for its importance via social life: The direct and indirect effects of health on subjective well‐being in chronically ill individuals 

      Lamu, Admassu Nadew; Olsen, Jan Abel (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-29)
      There is an increasing evidence that health‐related quality of life, income, and social relationships are important to our subjective well‐being (SWB). Little is known, however, about the specific indirect pathways that link health to SWB via social relationships and income. On the basis of a unique data set of 7 disease groups from 6 OECD‐countries (N = 6,173), we investigate the direct and indirect ...
    • Yhđessä – Sammen om kvenske virkeligheter: Situering og akademisk ansvarlighet i forskningsprosessen 

      Øyen, Gyrid; Kvidal-Røvik, Trine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-17)
      This article discusses methodological aspects of an ongoing research project on Kven worldings. The work is inspired by Donna Haraway’s perspectives on situated research. A metalogue, where the authors share reflections and discuss their maneuvers as researchers, makes visible some of the ontological and epistemological troubles the researchers are facing related to the philosophical research approach, ...
    • YKL-40 (Chitinase-3-Like Protein 1) Serum Levels in Aortic Stenosis 

      Arain, Fizza Kanwal; Abraityte, Judita Aurelija; Bogdanova, Mariia; Solberg, Ole Geir; Michelsen, Annika; Lekva, Tove; Aakhus, Svend; Holm, Sverre; Halvorsen, Bente; Finsen, Alexandra; Vinge, Leif Erik; Nymo, Ståle Haugset; Espeland, Torvald; Ranheim, Trine; Aukrust, Pål; Vaage, Ingvar Jarle; Auensen, Andreas; Gullestad, Lars; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-23)
      <p><i>Background:</i> Identification of novel biomarkers could provide prognostic information and improve risk stratification in patients with aortic stenosis (AS). YKL-40 (chitinase-3-like protein 1), a protein involved in atherogenesis, is upregulated in human calcific aortic valves. We hypothesized that circulating YKL-40 would be elevated and associated with the degree of AS severity and outcome ...
    • Yngre barns deltakelse i egen barnevernssak. «Æ kan jo også få være med å bestemme litt!» 

      Wolden, Anette Kristin (Master thesis; Mastergradsoppgave, 2017-05-15)
      Jeg har gjennomført 11 kvalitative forskningsintervju med seks barn i alderen 7-11 år. Tema har vært barnas deltakelse i egen barnevernssak. I intervjuene har jeg brukt elementer fra den dialogiske barnesamtalen ( DCM). Intervjuene er analysert og tolket ut fra ulike teoretiske perspektiver på deltakelse. Barna omtaler sin kontaktperson og sin deltakelse i møter i positive ordelag. Dette til tross ...